I've been a bit stupid and now something that used to work no longer does. My main desktop machine connects to the internet via a wireless network. It uses a PCI wireless card that is identified by the network configuration wizard as "Intersil Corporation Prism 2.5 Wavelan chipset". The wireless connection was set up under FC5 and worked for months without any problems. I upgraded to FC6 and it continued to work without problems. Then last weekend I had some problems with my wireless access point and as part of the diagnosis I removed the configured wireless connection and re-added it. And since then it hasn't worked at all. I mean that when I try to activate the connection from the network configuration wizard, it fails to get a DHCP lease. So, my current theory is that the wireless networking configuration stuff changed in some subtle way between FC5 and FC6. But I don't know how to track down what the problem is. Some things that might be useful: The connection loads the orinoco_pci module. I don't remember what it used to use, but I don't think it was that. I'm certain that the wireless connection used to be eth0, but now it's called wifi0. Running 'iwconfig' shows two wireless connections called wifi0 (the one I configured) and wlan0. This second one seems to be a "ghost" connection as any changes I make to wifi0 also happen to wlan0. For example if I change the ESSID on wifi0, then it is also changed on wlan0. The HAL hardware browser shows two interfaces on that card - once called "WLAN Interface" with a device type of net.80211 and another called "Networking Wireless Control Interface" with a device type of net.80211.control. I don't know whether or not that was the case before I screwed it all up. I thought I knew what I was doing with wireless networking, but this is going wrong at an altogether lower level than I'm comfortable with. If anyone can talk me through debugging this problem then I'd be very grateful. Let me know if there's any more information that would be useful. Thanks, Dave...
